No.
I am a pretty religious person, and a fairly observant Catholic. I think half the benefit of religion is the miracle of faith, and how it makes people from a poor man to Mother Theresa do great good for the world. Even if it is only an illusion (and I don't believe it is), it is one that benefots us all and makes folks happy.
I think of the one idea of wondering if God exists: act as if he does. If you are wrong, you've lost nothing (i.e., there is no afterlife), but if there is a God, then living well will mean a damn fine time in heaven.
In heaven, there is no flood control.
